Study on mechanism of fading spectrophotometry via xylenol orange for the assay of norfloxacin lactate .

二甲酚橙褪色光度法测定乳酸诺氟沙星含量及其机制研究。

Methods : to study the indentification of chitosan , lidocaine hydrochloride , norfloxacin and inspect the suction water of sponge . Extracting lidocaine hydrochloride and norfloxacin with acid and alkali then determining the content of them by spectrophotometic method .

方法：研究壳聚糖、盐酸利多卡因、诺氟沙星的定性方法，检查了海绵的吸水率，采用酸碱萃取分离及紫外分光光度法测定盐酸利多卡因、诺氟沙星含量。